TESMEN TCM-300D Digital Clamp Meter Review

See a detailed walkthrough of the device’s features and performance, including:

  • Unboxing & Setup: A look at what’s included in the box—such as the soft carrying case, probe leads, thermocouple, and batteries — as well as how to install the batteries and connect the probes.
  • Operating Modes: An explanation of the “Auto Mode,” which automatically detects voltage, resistance, and continuity, and a guide on how to manually toggle through functions like diode testing, capacitance, frequency, and temperature.
  • Practical Testing:
    • DC & AC Voltage: Testing a standard AA battery and a 120V wall outlet.
    • Resistance & Continuity: Verifying a 10k ohm resistor and using the audible continuity beep.
    • Capacitance & Diodes: Measuring a 10 microfarad capacitor and checking a silicon diode.
    • Current (Amperage): Using the clamp trigger to measure the draw of a portable air filter.
    • Temperature: Utilizing the K-type thermocouple to measure heat from a hot air rework station.
  • Special Features: A demonstration of the built-in flashlight for dark workspaces and the Non-Contact Voltage (NCV) detection feature for safety.